পাইলের কাজে সতর্কতা ও নিয়ম / Pile casting Rules

Concrete cover for various RCC members are
given below:
Pile - 3" or 75 mm
Pile cap - 3" or 75 mm
Footing - 3" or 75 mm
Column below ground - 2½" or 65 mm
Column above ground - 1½" or 40 mm
Shear wall below ground - 2½" or 65 mm
Shear wall above ground - 1½" or 40 mm
Beam below ground - 2½" or 65 mm
Beam above ground - 1½" or 40 mm
Slab below ground - 2" or 50 mm
Slab above ground - ¾" or 20 mm
Stair - ¾" or 20 mm
Retaining wall's earth face - 1½" or 40 mm and
opposite face: 1" or 25 mm
Door-window lintel - ¾" or 20 mm
Sunshade - ¾" (20 mm).